The fan runs normal as I doubt it would even turn over if the fan wasn’t spinning. (It’s a front serpentine, and if it died the whole engine goes with it I presume.) and the system is running clean as it’s been flushed twice. After about two weeks of running when I check the coolant it is nice and clean. The cap is new as the shop decided to replace it when they put the new rad in. It’s not leaking oil, I replaced both valve cover gaskets about a year ago because I saw one was leaking, not much but figured it was a cheap fix to rule out. Heater runs solid and A/C runs quite cold.
As I live in kentucky, that heater was quite needed this winter and it runs great. I’ll give a go at the heater core though.